Reversed and remanded by published opinion. Judge DIANA GRIBBON MOTZ wrote the opinion, in which Judge LUTTIG and Judge TROXLER joined.
OPINION
After Colin McRoberts and Jean Faw-cett divorced, Mr. McRoberts moved from Scotland to Virginia with the couple’s son, Travis. Ms. Fawcett filed a petition in federal court in Virginia requesting that the court order Travis’s return to Scotland pursuant to the Hague Convention on the Civil Aspects of International Child Abduction (the “Convention”), and the International Child Abduction Remedies Act (“ICARA”), 42 U.S.C.A. §§ 11601-11610 (West 1995). The district court granted Ms. Fawcett’s petition and Mr. McRoberts has appealed. Because the district court erred in its interpretation and application of Scottish law, we reverse and remand to the district court for further proceedings consistent with this opinion.
I.
Mr. McRoberts and Ms. Fawcett married in Scotland in 1986. During their marriage they had two children: Melody (whose custody is not at issue here), in 1990, and Travis, in 1994. By 1998, their marriage was experiencing difficulties, and on November 20, 1998, a Scottish Sheriff Court issued a decree divorcing Mr. McRoberts and Ms. Fawcett. This divorce decree made a “Residence Order in respect of ... TRAVIS COLIN PATRICK MCROBERTS ... requiring that [he] live with” Mr. McRoberts, and a “Contact Order” that allowed Ms. Fawcett contact with Travis on weekends and other specified times, for two weeks during the summer, and one week during each of the October, Christmas, and Easter holidays.
Over the next two and a half years, Ms. Fawcett made more than fifty attempts to modify her contact order. The record reveals only two instances in which the Sheriff Court modified the order; in each case, it imposed greater limitations on Ms. Fawcett’s contact rights. A February 11, 2000 order restricted Ms. Fawcett’s visits *493 with Travis to “every second Saturday between 10 a.m. and 5 p.m.,” and required that the visits be supervised. A June 23, 2000 order created a four-week contact cycle granting Ms. Fawcett no contact in Week 1, “residential contact” on the weekend of Week 2, no contact in Week 3, and Saturday contact in Week 4.
In February 2001, Ms. Fawcett grew concerned that Mr. McRoberts might take Travis to the United States and sought an interdiction order from the Sheriff Court to prevent Mr. McRoberts from doing so. On February 15, the Sheriff Court “refuse[d][the] same as Mr. McRoberts ... gave an undertaking to the Court that he will not remove the aforementioned children from Scotland to the United States.... ” The court then adjourned the hearing “for further evidence to be led.”
Sometime shortly after this hearing, Mr. McRoberts and his second wife, Mrs. Tammy McRoberts, moved to the United States with Travis, and took efforts to conceal his whereabouts from Ms. Faw-cett.
In an opinion issued March 29, 2001, the Sheriff Court, “on the Motion of [Ms. Faw-cett] Sist[ed] the cause pending the outcome of a ‘Hague Convention’ application to be made by [Mr. McRoberts].” 1 The court held that Mr. McRoberts
(1) unlawfully and wrongfully removed [Travis] outwith the jurisdiction of this Court without the express permission of [Ms. Fawcett] in Contravention of her parental rights in terms of Section 2(3) and 2(6) of the Children Scotland Act 1995; (2) failed to attend the diets of this Court on 26 and 29 March 2001 without an acceptable excuse; (3) removed [Travis] from the jurisdiction of this Court by taking him to the United States of America in breach of a specific undertaking ... not to do so pending determination of the present proceedings; and (4) Continues to retain [Travis] in the United States of America without disclosing his present whereabouts thereby depriving [Ms. Fawcett] of lawful contact with the said child.
The Sheriff Court then found Mr. McRo-berts in contempt of court, fined him, and instructed the Sheriff Clerk to “take all necessary steps ... to recover” the fine.
On September 25, 2001, a lawyer acting for Ms. Fawcett filed a Petition for Return of Child and a Request for Emergency Ex Parte Hearing in the United States District Court for the Western District of Virginia. The court granted her request for an emergency ex parte hearing, which it held later that day. The court also held a hearing on that same day at which Mr. McRoberts was present and testified. In that proceeding, the court verbally ordered Mr. McRoberts not to remove Travis from the jurisdiction or seek any state court order. On October 2, 2001, the court held another hearing on Ms. Fawcett’s petition, at which Mr. McRoberts again presented the only testimony.
On October 11, the district court granted Ms. Fawcett’s petition and ordered that Travis be taken into custody by the Bed-ford County Department of Social Services and returned to the jurisdiction of the Sheriff Court in Ayr, Scotland.
Fawcett v. McRoberts,
*494 II.
As a threshold matter, we must determine whether Mr. McRoberts’s appeal is moot. We have “no authority’ to give opinions upon moot questions or abstract propositions, or to declare principles or rules of law which cannot affect the matter in issue in the case before’ ” us.
Church of Scientology v. United States,
Of course, “compliance [with a trial court’s order] does not [ordinarily] moot an appeal [of that order] if it remains possible to undo the effects of compliance or if the order will have a continuing impact on future action.” 13A Charles A. Wright, et al.,
Federal Practice & Procedure
§ 3533.2 (2d ed.1984);
see also Graddick v. Newman,
Indeed, our recent opinion in
Miller v. Miller,
The overwhelming majority of other courts have also evidenced their agreement with this position by routinely considering the merits of an appeal from an order returning a child to a foreign country, even when compliance with the order has resulted in the child’s presence in a foreign country.
See, e.g., Ohlander v. Larson,
Indeed, at least two appellate courts have recently granted the precise relief Mr. McRoberts seeks,
ie.,
reversal of a trial court’s order returning a child to a foreign country even after the child has left the United States.
See In re Marriage of Jeffers,
Notwithstanding this wealth of authority, and without acknowledging any of it, the Eleventh Circuit recently did dismiss as moot an appeal from a district court’s order that a child be returned to a foreign country.
Bekier v. Bekier,
It is unclear why the
Bekier
court came to this conclusion. Although it cites several cases that purportedly support its mootness holding, all of those cases involve markedly different facts. For example, the
Bekier
court relied heavily on
B & B Chemical Co., Inc. v. United States EPA,
Such cases, however, present altogether different issues than the case at hand. Here, no law of physics would make it impossible for Ms. Fawcett to comply with an order by the district court that she return Travis to the United States. To the contrary, such orders are fully within the district court’s power and are commonly issued by courts in the United States.
See, e.g., Ohlander,
One concern that may have prompted the
Bekier
court’s decision is that while the remedy Ms. Bekier sought might not have been
impossible
to grant, as it was in
B & B Chemical,
the
Bekier
court may have believed that there would have been no mechanism for effectively
enforcing
an order that a child living outside the United States be returned to this country.
See Bekier,
As an initial matter, it is not at all clear to us that a lack of effective methods for enforcing a court order necessarily means that the court’s opinion “cannot affect the matter in issue,”
Church of Scientology,
However, even if, hypothetically, the lack of an enforcement mechanism could leave a court completely unable to “affect the matter in issue,” and render an appeal moot, Mr. McRoberts’s appeal would still not be moot because he does have a mechanism for enforcing a judgment by this court or the district court on remand. The *497 Child Abduction and Custody Act 1985, the United Kingdom’s analogue to ICARA, codifying the Hague Convention there, provides that “[a] decision to which [Articles 7 and 12 of the Hague Convention] applfy] which was made in a Contracting State other than the United Kingdom shall be recognized in each part of the United Kingdom as if made by a court having jurisdiction to make it in that part.” 1985, c. 60, Pt. II, § 15. Furthermore, that statute explicitly contemplates a revocation or variation of an order issued by a Contracting State and previously recognized by a court in the United Kingdom, and provides that in such circumstances the United Kingdom court shall either cancel its original order, § 17(2), or vary it, § 17(3). See c. 60, Pt. II, § 17. Thus, Mr. McRoberts would be able to seek enforcement through the United Kingdom’s courts of an order that Ms. Fawcett and Travis return to Virginia, were the district court, on remand, to issue such an order.
Although Mr. McRoberts could have proceeded directly to the United Kingdom’s courts without seeking a reversal of the district court’s order in the United States, there can nonetheless be no question that an order from the district court that Ms. Fawcett return to the United States with Travis would “affect the matter in issue in [this] case.”
Church of Scientology,
Furthermore, even if the United Kingdom’s courts did not recognize the order of a United States court, such an order could still “affect the matter in issue.”
Id.
For example, Ms. Fawcett could comply with the court’s order of her own volition. Or, if Ms. Fawcett failed to comply with the order, she could be held in contempt, and penalties could be assessed.
See, e.g., Ohlander,
In sum, it is clear that a decision reversing the district court’s order in this case does not violate the prohibition against “opinions upon moot questions or abstract propositions, or to declare principles or rules of law which cannot affect the matter in issue in the case before it.”
Church of Scientology,
*498 III.
In an action under the Convention and ICARA, a petitioner must “establish, by a preponderance of the evidence, that her child[] w[as] ‘wrongfully removed or retained within the meaning of the Convention.’ ”
Miller v. Miller,
The removal or the retention of a child is to be considered wrongful where—
[a] it is in breach of rights of custody attributed to a person, an institution or any other body ... under the law of the State in which the child was habitually resident, immediately before the removal or retention; and
[b] at the time of removal or retention those rights were actually exercised, either jointly or alone, or would have been so exercised but for the removal or retention.
Convention, art. 3.
In this case, the district court held that Mr. McRoberts wrongfully removed Travis from his habitual residence in Scotland, in breach of the “rights of custody,” held by both Ms. Fawcett and the Sheriff Court. The court also held that both Ms. Fawcett and the Sheriff Court were actually exercising their custody rights at the time of Travis’s removal. We address first Ms. Fawcett’s asserted rights of custody, and then those of the Sheriff Court.
A.
The Convention provides that the removal of a child is wrongful if “it is in breach of rights of custody,” Convention, art. 3(a), with “rights of custody ... in-clud[ing] rights relating to the care of the person of the child and, in particular, the right to determine the child’s place of residence.” Convention, art. 5(a). The Convention also defines, by contrast, “rights of access,” which “include the right to take a child for a limited period of time to a place other than the child’s habitual residence.” Convention, art. 5(b).
The district court correctly noted that Section 2 of the Children (Scotland) Act provides that a parent has the right,
inter alia,
“ ‘to have the child living with him
or otherwise to regulate the child’s residence ’
and ‘if the child is not living with him,
to maintain personal relations and direct contact with the child on a regular basis.’” Fawcett,
The rights provided under § 2 of the Children (Scotland) Act, however, can be modified by court order or decree. Section 11 of that statute explicitly provides that a Sheriff Court may make “an order depriving a person of some or all of his parental responsibilities or parental rights in relation to a child.” Children (Scotland) Act § ll(2)(a). 4
*499 In this case, the Sheriff Court did precisely that — the decree it issued divorcing Mr. McRoberts and Ms. Fawcett modified the parental rights that Ms. Fawcett would have otherwise had under § 2 of the Children (Scotland) Act. The “Residence Order” contained in the decree gives Mr. McRoberts the exclusive power to determine Travis’s residence, thereby necessarily depriving Ms. Fawcett of that same right. Indeed, Ms. Fawcett’s counsel conceded at oral argument that Ms. Fawcett had no right to determine Travis’s residence within Scotland, and that that right rested exclusively with Mr. McRoberts.
• As Sheriff David Kelbie noted in his commentary to the Scottish Court of Session’s opinion in
Donofrio v. Burrell,
2000 S.C.L.R. 465 at 16 (1999), a parent “clearly” loses “[her] ‘rights of custody’ [under the convention] if the other parent is awarded a residence order.” Thus, Ms. Fawcett’s attorney admitted before the district court that “under the divorce decree and the subsequent interim orders, [Mr. McRoberts had] the notion of custody.”
See also In re H (A Minor),
While Ms. Fawcett has conceded that she had no right to determine Travis’s residence within Scotland, she argues that § 2(3) of the Children (Scotland) Act gives her some rights to determine Travis’s place of residence, and thereby confers upon her “rights of custody” under the Convention. Section 2(3) of the Children (Scotland) Act provides that, “[without prejudice to any court order, no person shall be entitled to remove a child habitually resident in Scotland from, or to retain any such child outwith, the United Kingdom without the consent of a person described in subsection (6) below.” Subsection (6), in turn, applies subsection (3) to a person “who for the time being has and is exercising in relation to him” either the right “to have the child living with him or otherwise to regulate the child’s residence” or “if the child is not living with him, to maintain personal relations and direct contact with the child on a regular basis.” Children (Scotland) Act §§ 2(6), 2(3)(a) & (c). Assuming Ms. Fawcett was exercising the right to maintain personal relations and direct contact with Travis, § 2(3) does appear to prohibit Mr. McRoberts from removing Travis from the United Kingdom without Ms. Fawcett’s consent. Indeed, *500 Mr. McRoberts makes no argument to the contrary. What Mr. McRoberts does contest is Ms. Fawcett’s assertion that the prohibition contained in § 2(3) conferred “rights of custody” upon her.
Two of our sister circuits have recently considered this question and agreed with Mr. McRoberts, rejecting arguments very similar to Ms. Fawcett’s. Both
Gonzalez v. Gutierrez,
B.
The district court also found that Travis was the subject of rights of custody “attributed to ... an institution,” namely, the Sheriff Court.
Fawcett,
In reaching the conclusion that the Sheriff Court in Scotland was exercising “rights of custody” over Travis, the district court relied primarily on a case arising from a custody dispute in Ireland,
In re H,
Though we are obviously not bound by a decision from the House of Lords, judicial “opinions of our sister signatories” to the Convention are “entitled to considerable weight.”
Air France v. Saks,
*501 Even granting Ms. Fawcett the benefit of these assumptions, however, her argument fails because the application pending in the Sheriff Court at the time Mr. McRo-berts left Scotland with Travis did not “raise matters of custody within the meaning of the Convention.” Id. Indeed, Ms. Fawcett conceded at oral argument that she had not been seeking a residence order with respect to Travis at either the February 15 hearing, or in any other application pending before the Sheriff Court, but was rather seeking a court order prohibiting Mr. McRoberts from leaving Scotland.
Ms. Fawcett’s application thus did not “raise matters of custody within the meaning of the Convention.”
Id.
Even if the Sheriff Court had issued the order Ms. Fawcett had been seeking, the order would not have conferred any greater “rights of custody” on Ms. Fawcett than § 2(3) of the Children (Scotland) Act, or the
ne exeat
clauses discussed in
Gonzalez,
IV.
In sum, the district court erred in holding that Ms. Fawcett or the Sheriff Court had “rights of custody” under the Convention. 6 Accordingly, we reverse and remand to the district court for further proceedings consistent with this opinion.
REVERSED AND REMANDED
Notes
. Webster's Third New International Dictionary 2128 (1993) defines “Sist” as "1. chiefly Scot: to bring into court: SUMMON 2. chiefly Scot: a stay or suspension of legal proceedings; also: an order for a stay of proceedings.”
. The
Bekier
court also cited two unpublished opinions in which a case involving a petition under the Hague Convention was dismissed as moot.
See Bekier,
. Even if Mr. McRoberts's appeal were otherwise moot, we would still have ancillary juris
*498
diction to consider his appeal based on the district court’s order that Mr. McRoberts pay Ms. Fawcett's attorney's fees and Costs.
See Arlington County Republican Comm. v. Arlington County,
. Ms. Fawcett’s similar argument that § 3 of the Children (Scotland) Act grants her affirmative rights as a mother, in addition to her rights as a parent under § 2, is subject to similar analysis (and rejection) because the rights under § 3, like those under § 2, can be *499 modified by court orders made pursuant to § 11.
. The district court acknowledged that § 11 of the Children (Scotland) Act permitted a court to modify the parental rights provided under § 2. But after noting that "the contempt order [against Mr. McRoberts] stated that Travis's abduction was 'in Contravention of her parental rights,' ” the court found no "evidence that the sheriff court in Ayr has deprived Ms. Fawcett of her parental rights.''
Fawcett,
. In light of this holding, we must also hold the district court erred in awarding costs and attorney’s fees to Ms. Fawcett.
